NullPointerException 

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 <<O>>  Difference Topic NullPointerException (r1.4 - 26 Aug 2002 - AlexeyEfimov)
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 <<O>>  Difference Topic NullPointerException (r1.3 - 26 Jul 2002 - AlexeyEfimov)
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 <<O>>  Difference Topic NullPointerException (r1.2 - 20 Jun 2002 - AlexeyEfimov)
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 <<O>>  Difference Topic NullPointerException (r1.1 - 17 Jun 2002 - AlexeyEfimov)
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%META:TOPICINFO{author="AlexeyEfimov" date="1024307984" format="1.0" version="1.1"}% %META:TOPICPARENT{name="SystemPropertiesView"}% JDK Documentation: java.lang.NullPointerException

Thrown when an application attempts to use null in a case where an object is required. These include:

  • Calling the instance method of a null object.
  • Accessing or modifying the field of a null object.
  • Taking the length of null as if it were an array.
  • Accessing or modifying the slots of null as if it were an array.
  • Throwing null as if it were a Throwable value.

Applications should throw instances of this class to indicate other illegal uses of the null object.

-- AlexeyEfimov - 17 Jun 2002


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Revision r1.1 - 17 Jun 2002 - 09:59 GMT - AlexeyEfimov
Revision r1.4 - 26 Aug 2002 - 13:29 GMT - AlexeyEfimov
Copyright © 2001 by the contributing authors. All material on this collaboration tool is the property of the contributing authors.
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